Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
21003excellentexcellent11excellent
20002excellentexcellent11excellent
19003excellentexcellent11excellent
18005excellentexcellent11excellent
17004excellentexcellent11excellent
16004excellentexcellent11excellent
15004excellentexcellent11excellent
14005excellentexcellent11excellent
13004excellentexcellent11excellent
12004excellentexcellent11excellent
11003excellentexcellent11excellent
10006excellentexcellent11excellent
09005excellentexcellent11excellent
08006excellentexcellent11excellent
07007excellentexcellent21excellent
060010excellentexcellent21excellent
05008excellentexcellent11excellent
04006excellentexcellent21excellent
03007excellentexcellent21excellent
02007excellentexcellent21excellent
01009excellentexcellent21excellent
00008excellentexcellent21excellent
23009excellentexcellent21excellent
22004excellentexcellent21excellent